Would an upgraded R-class battleship still be too slow for useful fleet work?
Short answerIt would remain slow, but about 23 knots and a full 15-inch battery could support convoy escort and selected fleet operations.
NotesImproved boilers might have brought Royal Oak to about 23 knots. That speed still points naturally toward convoy escort, but it would not confine the ship to that duty alone. A commander might accept slowing Queen Elizabeth-class ships to gain another heavy 15-inch battery. The choice would trade formation speed for firepower.